[Quick Transmigration] A Regret Pill, Please

Don't buy the last four chapters!!! The logic is dead, and it's full of stupid, saccharine nonsense!!! Do you regret it? We sell [regret medicine] here. Want some? [Five]: Yi Ran has secretly wanted to be with Bai Tian for two years, but before he could confess, Bai Tian died. Now he has a chance to start over. No matter how much of a coward he is, he'll make sure he becomes the man in Bai Tian's life! Yi Ran, easily ignited: a man who burns only for Bai Tian! Bai Tian, Bai Tian, does your household need a single dog to guard the door? Woof, woof, woof! [Chapters Two, Three, and Four are pretty bad, so feel free to skip them.] Please be civil when reading. If you don't like it, please don't make personal attacks! Theme: