MTL - Start with Batman - ~ about update

(Naruto + Single Heroine Tsunade + Romance + Action)A failed author transmigrates into the Naruto world, becoming the younger brother of Konoha’s White Fang, Sakumo Hatake, and the uncle of Kakashi. He gains a cheat ability—enhanced cellular activity.Coincidentally, just before the Second Shinobi War, he participates in a Jonin meeting where he supports Tsunade's proposal ahead of Dan Kato, marking his first encounter with her.From then on, he launches an intense pursuit, winning her heart during the war.Tsunade: “Kawakaze, why do I keep losing to you?”Kawakaze Hatake: “Because I’d like to live a few more years...”Kakashi: “My uncle is amazing, I’m his biggest fan!”Kawakaze Hatake: “Keep it low-key, keep it low-key.”

Jeong Yoo-shin, 23 years old, was suddenly transported to another world.In this world, not only was it impossible to return home, but even survival was uncertain.Black-haired humans were called Barbarian and treated as northern savages.There was only one place where he could gain the strength to survive and find a way to return home: the Great Labyrinth.“I must become stronger to survive. And I will definitely go back.”This is the story of a black-haired human’s fierce struggle for survival in the labyrinth.

He is the fearsome heir of an empire, wielding power throughout his life, indifferent and cold by nature, yet devoted to her wholeheartedly.“Summer Sutton, the only woman I will ever marry in this lifetime!” At the engagement party arranged by his family with another woman, he arrives with her and blatantly kicks the white lotus out of the picture.Everyone knows that Summer Sutton is the one Adrian Walyon holds dear to his heart; whatever she desires, there is nothing he cannot provide.At her mere longing for him, he flies thousands of kilometers overnight to be by her side.At her mention of missing the taste of home, he orders food to be prepared and immediately air-shipped to her.When she expresses her wish to reach for the stars, he reserves an aerial restaurant 108 floors high, making the starlight accessible.“What else do you want?” he asks earnestly, gazing at her.She tiptoes up, wrapping him in her arms, “Adrian Walyon, all I want is you!”

“I can definitely become an immortal,” she said.He looked her up and down, sneered, “You can indeed become an immortal, a Lazy Immortal.”She breathed a sigh of relief, fully self-assured, “A Lazy Immortal is still an immortal.”He was speechless. Great, very powerful, who says a lazy person can't become an immortal~