Yaku

 Yaku is a very short-tempered young man. He's more likely hit first then think. Most of the time he is salty and irritated so a lot of people can't get along with him, so he tends to spend a lot of his time by himself. Although if you get close to him (good luck with that) he is very caring for his close ones. He has an Older sister Vi and a niece Bunny. Yaku is afraid of his big sister more than anything as she used to beat him up for all the stuff he did as a teenager. To this day, he has no clue how his niece grew up to be such an angel and fears she might corrupt one day.
 He is in a relationship with a professor from the science faculty of the college he goes to. He was stalked, harassed nonstop by the professor to start a relationship with him. after 2 years he kinda gave up, but in reality, he got emotionally attached to him and developed feelings towards him, although, he rarely shows it. (he is shy)