The Extreme Alchemist of the Mighty Cauldron - Chapter 1703 - 1800: The Black Sea Fish

Qin Muling, who was reborn by chance, joined the Yunmeng Heavenly Palace, which was full of beautiful women, and became the closed-door disciple of the supreme leader. He thought he could step onto the pinnacle of life from then on, but little did he know that he would be suppressed by the senior sisters who were both stunning and powerful, to the point where he couldn't even lift his head.He fought hard for his dignity, but was repeatedly defeated and suppressed by the senior sisters without any mercy. He never had a chance to turn the tables, and in the end, he had no choice but to give up: “Senior sisters, I don't want to strive anymore!”The senior sisters smiled and threw out a life-or-death question: “Very well, choose one of us!”Qin Muling: “...”

In a morgue filled with the bodies of Uchiha clan members, he opened his eyes...A mysterious voice echoed in his ears...With a bewildered expression, he muttered, “Save the Shinobi world? What does that have to do with me, a mere Uchiha survivor?”

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

A 34-year-old NEET otaku, chased out from his house by his family, found that his life is reaching a dead end. He then recalled that his life could actually have been much better if he had made better choices in the past.

Just when he was at the point of regret, he saw a truck moving at fast speed, and three high schoolers in its path. Mustering all the strength he had, he tried to save them and ended getting run over by the truck, quickly ending his life.

The next time he opened his eyes, he is reincarnated to a world of sword and magic as Rudeus Greyrat. Born to a new world, a new life, Rudeus decided that, “This time, I’ll really live my life to the fullest with no regret!” Thus starts the journey of a man yearning to restart his life.