FFS, I tried like 10 times to comment on your COTEXPJO fic, but it kicked me out of Wattpad every time so I’ll try posting it here. It’s about Ayanokoji being “merciless” and showing a bit of is dark side in competitive situations.
Competitive? No, competition alone isn’t enough to make him opt for self-preservation at all costs. It has to be a situation that he is not in control of, has negative consequences for him or what he desires/plans, or something like that. If competition alone was enough to get him to do “anything to win”, he wouldn’t hold back all of the time, which is what he does. In the sports festival, Island exams, class paper shuffle, etc.
He is merciless in regards to preserving himself, and/or in forwarding his plans, so if flying under the radar and sticking out as little as possible is useful, he will do it (like when Ryuuen was looking for X), but when he wants to divert Ryuuen’s attention away from him, he acted out and made an outstanding performance in the race during the sports festival, which was the exact opposite of what Ryuuen thought X would do, so Ryuuen no longer thought Ayanokoji was X.