It is wrong to abuse psionic abilities in a Dungeon? Danmachi FF
Potions, magic items? Psychometry at it, and make your own!
Secret techniques and knowledge? Psychometry at it, now you have the knowledge to make a spirit contract!
Convince a misguided cute girl you want to help her? Well, she's thirsty for companionship so just be trustfull.
The MC name and personal memories were gone as he awoke as Sinns'krieger a green-haired pallum who died from a cursed item that killed his car crowd to Orario.
He soon takes notice of his new [psionic] abilities, when he tries to remember the body's past as he uses psychometry to learn how pallums are treated like (minor people) even his own height only reaches 143 cm as a young half-pallum.
He discovers some other uses for his abilities that inspired him to be "great" and discovers he was two years before Hestia came to the mortal realm...