Naruto: My Romance Targets Are All Ninjutsu

After transmigrating to Konoha on the eve of the Third Shinobi World War, Mikami Yuu was fortunate enough to awaken the Shinobi World Galgame System. He had thought that, with the system's help, he could coast through life in comfort-only to discover that his romance targets were a little strange...

"Yuu, why are your ninjutsu so much more powerful than everyone else's?"

"Well... you need to talk to your ninjutsu more often and raise their affection for you. Give them gifts now and then, have special interactions with them on certain special holidays, and finally confess to them during their mysterious inner events. Once the ninjutsu agrees to be with you, you'll have mastered it completely! Why don't you believe me? That's how galgames work!"