Nah~ He isn't angry. He goes there everyday to investigate Iku. To make it not suspicious he just buys Irakkuma as collecting lot stickers can exchange them for an angry irakkuma plate. http://www.mangago.zone/read-manga/23_45_re/uu/23_45_re-chapter-1/11/ Both Iku & his coworker thought he likes Irakkuma, page 25 just confirms his true purpose.
OH thank you! I thought that the one who said " It's not like I was trying to investigate anything" is Iku. So the one who really said it is Mimori?
Wait, please tell me if I'm correct on this or not:
Iku followed Mimori when Mimori forgot his umbrella in convenience store. Then after giving it, Iku confessed about the moments they had together when Mimori's soul was still wandering (when he was in coma) and he also confessed his feelings to Mimori. But, Mimori couldn't believe it and rejected Iku. Iku started to avoid or ignore Mimori whenever he went to convenience store.
Is that right? Then what about Mimori, what he is really feeling about that? Did he also avoid Iku? and Why was he investigating Iku? Can you please tell me? >< Thank you!
Instead of avoiding, they both try to keep seeing each other more..
In page I linked above, Iku mentions that Mimori keeps coming which makes Mimori nervously reply he doesn't try to investigate but thinking he actually investigate. Then he thinks of "Angry Irakkuma Plate" & used it as excuse.. While Iku tries to get up early to see Mimori, be happy just seeing Mimori's bedhead or what he likes.
>> It's like though Mimori doesn't believes but he also can't let go so he tries to investigate or find out more about Iku.
I guess it's like the prequel that sadly starts then slowly sweetens & warms up.

why is it that Mimori seemed angry/emotionless on page 25 when his officemate asked him if he likes Irakkuma? Is it because the sticker reminded him of Iku? PLease tell me ><