Hajime from "World of Narue." It looks like no one has made any LoRAs from this series yet, so I'll upload mine. It's trained from screenshots from the first several episodes. The trigger word is "yagi hajime" and "purple hair, long hair, twin braids, glasses, green eyes" can help. For outfits, try "serafuku" or "green shirt, shorts, backpack" or feel free to experiment.