Red King ˣ White King

ʜɪɢʜ sᴄʜᴏᴏʟ ᴅxᴅ 𝑿 ᴍʏ ᴏᴡɴ sᴛᴏʀʏ

Irza Erzenell V. Varnell, or simply Irza Varnell, is a girl with a complex past-both in her family's history and her own life. Despite having lived for over 90 years, she still retains the youthful appearance of a teenager, making her indistinguishable from an ordinary human.

A few days after completing her last mission and returning to Japan, she resumes her daily life as a student at Kuoh Academy. However, things aren't quite the same as before. A certain girl has started treating her differently-not in a bad way, but... something has definitely changed.

Anything but High School DxD isn't mine
All other characters, places, events are just a make up

Has so mush change in original HSDD.
Like, ▒▒▒▒ and ▒▒▒▒ (Like heck I would give a spoiler).

This fan fiction just focused about plot story, not focused much to romance.
Could say that this kind of soft yuri or shoujo ai, something like that.