
You are right. The author didn't call him prostitute or something like that. But the real plot that author made the ML is his family got killed, only him is alive since his grandmother the witch saved him. Then the king took him in and got trained until become the top knight of the country. When he was 15, there were many invitations from women, rich and some married women. He could deny but he didn't since he didn't want any trouble for the king. He accepted all the invitations. Invitations referred to those women took him to the places and fuck him. Of course he didn't have any relationship with these women and they treated him as a toy, beautiful doll. Later, the king's relative, Elishka, invited him to be her personal escort. Which means he become the sex partner for Elishka, to be exact. Since he accept her invitation, other women stopped invite him! This is why he is grateful to Elishka, got fucked by one woman not many random women anymore! Later Elishka married to another country but she visited the country 12 times, when she fought with her husband. Everytime she called for Inag, to be her escort, to protect and be her fuck toy. The context showed that Inag being the sex partner of Elishka, one of her escorts, jumped on Veronica and got on top of her. Which means Ilishka always sleeps with her escorts, Inag was one of them. Lastest, it showed she wanted to sleep with him but Veronica was in the way. After knowing Elishka is pregnant, and he's falling in love with Veronica, Inag told Elishka that he won't sleep with her anymore. Inag made the choice to use his body to show the gratitude toward the king, and Elishka. He didn't go hunt and find women to sleep with. So it's not wrong either if I call him the prostitute of the country. I don't like the plot, but I don't try to make any excuse for it since I like Inag and Veronica together.

I think you look story in a wrong way. He was toy of them but not "sex" toy. Womens were attacking him to sleep but not mentioned him sleeping with them. Looking his personality i don't think he ever sleep with someone who he doesn't want to. Also i don't think king and priest would allow this kind of this kind of things. They know his value and they are friends. Also in one chapter ignac clearly said witch (mf) that he has nothing with elisshka. She used him not for sex but kind of bodyguard since he doesn't accept any kind of intimate relationship with her

http://www.mangago.zone/read-manga/majo_to_kiketsu_no_kishi/mf/mpn_chapter-2182463/pg-62/
I think author explains why he was with her in that times. He used her to avoid other women's while she used her to relief his stress and kind of escord her . İ don't think it was sexual way since few pages before he says " i will not escord you anymore" next to do her husband. İ don't think any husband would stand still if he meant escord as a sexual way

Ok This not smut manga, but Josei and not using clear words to explain sex or the relationship in the context, but from surrounding contexts and illustrations. I wish so much it would be like you explained, he had no sexual relationship with bunch of women, including Elishka.
ch. 7 (22/69) Elishka, He knows my disposition since I had a deep relationship with Ignac before. Keyword is Deep relationship. At this point, Elishaka might be just lie or we don't know the fact that Ignag had sex with her.
(41/69) Elishka tried to get intimate with Ignac but Veronica was in the way. It showed how they were together before
(51/69) One of Elishak escorts attacked Veronica: If you say Elishka sama isn't available, then I'll take you instead. Keyword is Take you. That guy jumped on Veronica and on top of her, Take her means sleep with her to be polite. This lines indicates Elishka sleeps with her escorts, but we don't know for sure if Ignac sleeps with her yet, at this point right.
(55/69) end of the panel, Elishka visited the country 12 times after she got married, mostly when had a fight with her husband. It indicated that she came alone to visit the country.
(5/69) Ignac accompany her everytime without complaining. Ignac said he won't accompany her personally anymore. Tell her to find others for the next visit. Keyword is Personally. Personally means not only protect by sex service's included. Ignac told her to find other men to do it with for the next visit. Alright, at this point, still can't say for sure Ignac had sexually relationship with her if looking from the conversations and illustrations.
(59/69) Elishka said she got rejected. Keyword is Rejected. She took interest in him the moment she met him. The panel explained what Elishka saw in Ignac, cold eyes, beautiful like a doll. This panel it confirmed that Ellishka and Ignac had sexual relationship. It just showed the drawing of Ignac lay on the bed, shirt open. This comes to the conclusion that Elishka wanted to sleep with Ignac like before but got rejected. The supportive line from Elishka is Eventhough, He's taken away, I don't feel frustrated. Keyword is Taken away. Elishaka said Veronica takes Ignac away. Her favourite toy boy got taken away, to be exact.
(61/69) Read through the explanations, according to Ignac, Elishka status is high after he took her invitation, the problem with other women's gone. He thought he had to repay the favour, one way or another. That's why I did exactly what she was hoping for. The keyword is l do exactly what she is hoping for. Elishka sleeps with her escorts, it shows Ignac did that for her too to pay the debt. This is how Ignac explained his relationship with Elishka to Veronica.
ch. 8.5 (3/12) Elishka, Don't you have any bit concern for your past lover? Ignac said I've never been your lover not even once. Ignac told her he didn't love Elishka. He paid his gratitude to her by being her sex partner but not as lover, just sex, no love.
(4/12) Ignac, That time when every women held an interest for me, not everyone looked at me as their lover, they just wanted a rare doll to play with.
Here everything is clear as day! Those women sleep with him while didn't see him as the lover, but beautiful man to had sex with!
(5/12) toy here means they play him as the toy, sex pleasure toy of course. Look at the illustration that tried not to expose but giving a hint.
(24/68) The Prince to Veronica. He explained why Ignac didn't deny to sleep with those women since he felt indebt to his father. Ignac always said I don't really mind. Ignac didn't mind sleeping with those women to avoid the problem for the king it irritates the prince. The prince said those women just wanted to paly with Ignac. Play means treating him as the sex object.
(39/68) The princess wanted Ignac for herself too but she got rejected since this time Ignac falls for Veronica already. Yes, the princess is mad!
ch. 10. Invitations from the opposite sex became quite evident, thus measure were taken. Though he seems to accompany some not looking excited. He rarely shows intrest in love. Here look at the illustration. It showed Ignac was laying down and the woman, assumed to be Elishka, was on top of him. This is the indication that he had sex with women by invitations, and became Elishka personal sex partner before he met Veronica.

Well, I took time to explained to you by using my critical reading skill. I wish Ignac wasn't like that, but I can't lie to myself. I am disappointed that the author made him this way. He was grateful to the king and prostitute himself to avoid any problem that might happen to the king. He became Elishka escort, included sex partner since Elishka always sleeps with her escorts and Ignace didn't mind doing that for her. The word, Toy, of course those women do whatever they want with him for their own pleasure. Escort, look how Elishka treated and had relationship with her escorts. Of course they protect her and she did what she wants with them! Saying she had deep relationship with Ignac and taking Ignac as her past lover and the illustration from ch.10. It's 100% that Ignac was her sex partner. She said that in front of her husband like nothing since these women don't hold any morals, can't do anything wrong if you don't have morals, right? Her husband is so madly in love with her, he could careless what she did. She told her husband about Ignac too if you read in his conversations.
Fact, Ignac used to sleep with many women by invitations and became Elishka personal sex partner. True that Ignac never date anyone, and never love anyone, never in relationship before. True he won't go find any woman to sleep with but those women invited him and he didn't mind to sleep with them!

Wow, I can’t believe I missed these signals! Now that you’ve pointed them out, I see that there is a likely possibility that your assessment is correct. Though I want to say that you are looking into it too much, I don’t think that an author would mistakenly put those occurrences in. Now I understand why people say “ignorance is bliss.” Those horny ass women need to re-evaluate their integrity and lives because it is under no circumstances okay to objectify anyone. I hate when authors allow characters to be objectified but it’s bound to happen(sad but it’s reality).Thank you for bringing those receipts!

Hey Thank you for your fair and open hearted comments! You're right, I looked into it too much. I had to since the author made him the sex object of those powerful, rich, and married women, but tried to make it like no big deal at all. For me it's a big insulting and humiliation to the main male character who's the top knight of the country but see what he became! I think most of this manga's fans are Shoujo. That's why it's too much they can' take it but turned to hate my comments instead! They only see what they want to see, not even the real plot. Plus later the author got away with this dark ugly truth of her ML, by making him super lovely dovely cheesy in love with Veronica. No grudges, no hatred towards any character since it's fiction, but I can't ignore the fact in the plot.

Don’t worry I have seen the raw they will explain everything later but yeah. I really liked this story but it was a turn off when I found out he was a sex toy for the country. I didn’t want to admit it since as u point out how the author hints at it in some chapters but later we i think we get the ml point of view that’s why I’m waiting for this to translate. But the ml had it tough and I’m happy he love the mc she tough as well i don’t remember what chapter but they tell us that she had to sell her body to survive so in the end they were met to be!! Both of them suffered and both taught other about love. They both needed each other. This is every deep if you pay attention to details. Well that’s all I wrote a lot sorry and enjoy your read!!
too pity so called top knight has to become the male prostitute of the country, or toy boy for powerful and rich women. This is the reason why author kept explaining how beautiful the ML was. It's hurtful more than being proud of his look. The ML is survived, but no pride as the man left. The plot could make better ML. The top knight not being busy fighting but being fucked! A big let down