The Heirless Alpha's Exclusive Devotion

Shot top-to-bottom for smartphones, The Heirless Alpha's Exclusive Devotion is a revenge and romance series where each episode plays like a single scroll-stopping scene. It runs 69 episodes of roughly one to two minutes each — about 1 h 44 min in total, easy to finish over a few commutes. The plot, in short:

Kaelen, strongest Alpha of his werewolf clan, struggles with fertility; his grandfather arranges marriage with the Chris family. Chris, mistreated at home, flees, works at a bar, is drugged, and has a one-night stand with Kaelen, getting pregnant. Mocked borrowing money at home, she's rescued by Kaelen, who insists she keep the baby and punishes the bullies. Chris gives birth; the family lives happily ever after.