Idk how much is gonna feel original but

Vani will hurt himself as punishment for fucking up his blades have had his blood on them

His first kiss with jeanne was a learned behavior from his childhood he did not come up with those moves on his own

Trans vani idc which way hes moving or moved hes just trans

Before Luna he really liked the stars and has a knowledge of most constellations and how to find them - he still looks at the stairs when hes out on the roof at night

Vani hates fiction if hes learning its to learn and he loves to learn

In fact if you get him on a topic hes knowledgable abt he will info dump(see his explanation of the effect of jeannes bite)

Vani has a lot of little words from many languages but knows a lot of sign language - he would not tolerate losing his voice and being unable to communicate