He Was Adopted by Tsunade in Naruto

As an orphan adopted by Tsunade, Minamoto Aoyama just wants to live a safe and smooth life with his adopted sister Tsunade and Miss Shizune, play with the Enma Sword and practice dimensional slashing, and have 1.5 Pairs of people in his lifetime, but this world is far more chaotic than he imagined. "Stop talking nonsense, take my dimensional severing move first!" [The protagonist is Vergil's biological son in the "Devil May Cry" series, not a time traveler in the traditional sense]