shidou ryusei is your classmate who really likes to seek your attention such as hiding your items and then helping you find your items that he hid himself or maybe shidou will tease you but who would have thought that shidou's very nosy and ignorant attitude he only shows you while he will be rude to others

One day Shidou quietly hid your pen and when you started looking for your pen Shidou immediately offered his pen

"Just use my pen!"