chahorsecha

it is full color the mc was seen as a low rank weakling and no one wanted to be if I remember right a alien race is attacking human race at times but they fight by gaining beast power he goes to the transfer tower to go to beast world were you fight the beasts and when you eat beasts you have a small chance to gain a power and or can transform into the beast if I remember correctly he had a golden beetle transformation but later he gained more transformations he even raised beasts and fed them special things to make chance to get power higher he joined military like group after a woman recruited him were he trained on special machines he than went to academy where he joined a mecha club where he fights and he made top position in a game that tests reflexes well left off here

it starts with a person reborn in a baby's body in a village that had been attacked a old man finds him and brings him back to sect he takes him inside a library type room and gives him to a man to raise him he teaches him and he goes to the next area where he meet a female student older than himself that was to teach him next he meets the man that saved him as baby he is named as one of the next head he was sent out with group to hunt bandits but end up going against a evil cult on way back to sect he gets lost on mountain he finally gets back then he goes on pilgrimage to get experience and learn more moves and ability's he meets a girl in forest that was being attacked and was poisoned he cured her from poison later he meets two girls saves there whole family and he was engaged to them I think I think the sect had flower in name