
I don't think that the teacher has any ill intent to be called a predator. Besides he was doing his best to control his feelings and he knew that he should become a proper model for the student. Also he wasn't seeing him sexually cuz if he did he would have jump at the opportunity where the student was making a move on him. He likes him that's all and his feelings were requited. We are allowed to like anyone, I think what is not allowed is liking someone with an intention to hurt and assault them sexually. The student also was mature enough to think on his own, he wouldn't have done that if he wasn't. also maturity of a person's thinking cannot be based on age, there are a lot of factors that can affect the person mental maturity. They were also both aware of their own actions and it's consequences. I don't know what other people think about liking someone, but on what I see both characters like each other because they got attracted with each other's personality, liking does not equal to liking or seeing someone sexually.
Lastly I don't see anything wrong with the teacher waiting for him to become legal or waiting for til he was able to graduate highschool. If you truly love or like someone then you are able to wait for them which for me is respectable. The amount of self-control one must put to endure. Also I can see that both of them does not want to push the other to do so something the other is not willing. One best example is the extra on the last chapter. The student could've attack the teacher or the teacher could've have given motives but none of those.
(Forgive me for the improper grammar. Also you can call this justification, I might be bias for some since I'm basing this on what I could see on both characters.)

An alternate universe where Yashiro was able to confess to kageyama and they ended together.

I sometimes think of what will happen if Yashiro confess to Kageyama back then. Even though Kageyama only think of him as a friend I always think that it will work out. If Kageyama save Yashiro back then, then maybe he won't be walking on the path he is in right now. Maybe Yashiro will accept his self and will finally be happy. (´°ω°`)
But I'm still scared of the fact that Kageyama will reject him if Yashiro really confess. He might can't take it. ( ꈨ ˙ ꈨ )
But I still hope that Yashiro and Doumeki end up together. Yashiro deserves better. He deserve happiness. (´°ω°`)
He obviously was not grooming him, first of all he brought him in with the intention of raising him. Second he does not see him sexually even tho he helped the panther kid to you know. The person who commented it obviously does not know what grooming means.
Grooming is when someone builds a relationship, trust and emotional connection with a child or young person so they can manipulate, exploit and abuse them."
Google is free
Is that not what he did? Raised the child just so then later he could have sex with that child? Y’all losing your morals over BL and it’s disgusting to see.
You didn't even read it gtfo
And yet you still read it lmao
are you illiterate or something did we read the same manga because you are making yourself look like an idiot