TS story of swordsman who visits city dominated by Succubi,changes class and gender, and becomes female magician in order to become more capable adventurer after he was kicked from his party.
There is also some female to male TS? though some of it is just partial? And some soul splitting, fusing. Its kinda hard to express in tags so i will just mark it as TSF, since that's the main, and hope smarter people set correct tags.

If you like it you can buy it here:
https://www.dlsite.com/maniax/work/=/product_id/RJ324699.html

>>Soul splitting and fusion

Tell me more

Base +6, TrustableBackstabber +6, Rivfader89 +8

这个作者小说都很顶的，要是有人能翻译一下就好了

Base +6