An Extra Villain in Cultivation World - Chapter 15: One Pokemon Caught

Most people think getting summoned to another world or reincarnated as a Hero is a dream come true. Power, fame, glory, money. What’s not to love?Jin thought the same… until it happened for the 500th time.After centuries of saving and destroying worlds, he just wanted to rest. But when two supreme beings refused to end his cycle of reincarnation, Jin took matters into his own hands and tried to summon himself back home.The result? His spell had gone wrong.Now he’s stuck in a world almost identical to his old one. Except this time, it’s ruled entirely by women. But when he thinks he can finally retire, he gets blackmailed into becoming one of the 'Heroes' of the world.Discord: https://discord.gg/ERp9NF59f5

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

In the eyes of outsiders, Hyuga Yuuto is a genius in the traditional sense of the Hyuga family:

Tough, strong, gentle, and calm, he is a partner worth relying on at all times.

However, no one knows, in countless silent nights.

The young genius of the separation family stroked the caged bird engraved on his head and fell asleep with the sharp needle in his mouth, fearing that in his sleep he would reveal the madness and anger deep in his heart——

“What Uchiha Itachi can do, I, Hinata Yuuto, can’t dare to do?”

- Description from novelbuddy

She is the Crown Prince’s fiancee, but on the night of their wedding, an edict was made and she was given off to marry the crippled and paralyzed God of War.