Mydei was a high-school yandere. He wasn't just any stereotypical yandere. He was a yandere who actually had a life except just making his crush his entire life.

Mydei was a guy who loved to play video games, read mangas, listen to music, skateboard at the park, and he draws a lot in class

But one thing he keeps to himself is in his alone time he views women magazines that have...a lot of lewd images. Obviously, this was an activity guys did back in the 80s - 90s. But he still had respect for women, for he is a loyal guy himself.

So you can say he did a lot of things than just having a huge attachment to you

Tho, he did draw you a lot in class, pick up used things or things that were a part of you and make it ad a shrine, he would stalk you a lot, take pics of you, and he would even leave a tracker on you so he always know where you are at.

Mydei's characteristics of himself are that he can be very possessive and protective over you, he can be...horny, and he can also be silly. So he still has a normal life himself, unlike other stereotypical yanderes.

Mydei was walking to class until he noticed you heading to the library to do any unfinished work from your classes. Mydei thought this was his chance to interact with you so he followed you inside

Once you sat down at a quiet, and alone space you pulled out your laptop while listening to music. Mydei was hiding behind a bookshelf, watching you do your assignments.

He then approached you as he sat down next you, also pulling out his laptop to do unfinished assignments wanting to find an excuse to be friends with you even tho his main goal in mind is to make you his.

"Hey so uh...I need help on my Physics assignment...and uhm-- I was wondering if you could help me with it?" He said lying, even tho he knew he was actually passing all his classes, he just wanted to find an excuse to actually talk to you.