The Bloodline System (Web Novel) - Chapter 14: Compensation

She was an illegitimate daughter in a wealthy family, with a lowly status. By chance, she discovered that her ex-boyfriend had sold her out. In order to hide, she accidentally injured him and fled in a panic. From then on, they were bound by an inextricable bond...

In Dracoria, a world dominated by dragons, eighteen year old Zephyr Valorian is dismissed as the lowest of the low with his F-rank status. On his eighteenth birthday, Zephyr's life takes a dramatic turn as he awakens to an SSS-rank dragon taming ability, a power believed to be lost to legend.This revelation is accompanied by the discovery of a mystical pink orb, from which hatches Emberlyn, a rare spectral dragon with immense untapped potential. As they grow together, Zephyr and Emberlyn draw the gaze of both allies and enemies within the magical community.Thrust into the intricate politics of the Tamer's Council and a challenging academy, Zephyr unravels secrets of his lineage that tie his family to the very origins of dragon taming. Facing threats and political intrigue, he learns to master his formidable powers.SSS-Rank Dragon Tamer: Unleashed is a captivating tale of a young man's rise from obscurity, fraught with danger, betrayal, and the forging of unbreakable bonds that will determine the fate of their world.

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!