I also choose Usalia, but I'll add Harmony as well!

Excellent choices. I would like to add L'arachel Fire Emblem Sacred Stones. She is a hero and a genius, in addition to being beautiful and royalty.

The stories are stand-alone so play whichever! Only problem is you won't get references in the post game but those are typically non canon anyway. If you somehow find Disgaea Dimension 2 then play D1 first.
I love Usalia! Her story is good too the whole cast gets something.
(Cont.)

Disgaea 4 is my favorite! 5 is really good too! 3 and 6 are hard to recommend, at least for me... I share my bday with Usalia from D5! Very cute bun girl who loves curry! (One of my fav foods!)

I imagine they mean NISA chan

So cute!!

I deciphered the meaning.
Cons: a seismogram, vertical ways. The Earth shakes when she walks around with all that goin on.

Wallride tech is fun

These two been going at it for years

She wears red shorts and suspenders, but that is her natural skin color!

I really liked how the sky looked here. This is Lucien, he's my FFXIV character! PLD main but picking up PCT because I like it and it's broken.