Atsumare! Fushigi Kenkyu-bu - Vol. 15 Ch. 277 - The Mystery of Rag Cleaning

[MangaDex]

 

[LupusVir]

So, Daisuke started out needing to be hypnotized to win a race, but over time he wins more and more for one reason or another, pushing himself to win each time. Now, as long as he has motivation, he basically always wins the race. Kinda cool to have that slow development.