JKSManga
On the sunlight topic and blood topic I think it's because he is not a full fledged vampire and is just becoming one so the effects of being a vampire is not as severe Either that OR The system requires him to level up to reach different powers and abilities but they come at a drawback of the sunlight and blood
I am bothered by the lack of details for this, like where in bus did he sit? Was it mention that he sat? Did it mention where that sarge sat? Or did he just like stood there glaring at the students? And the part where they are awoken, did it mention what there position is, cause to tell you, if i was knocked out I will NOT be standing when i woke up, the hell i'll be like a dead salted fish on that ground.... All-in-all meh, but good, but meh... đ