Douluo Continent: Steadily Growing Stronger in Shrek Academy

Douluo Continent II: The Legend of Tang Dynasty fanfiction
Lin Chen, a laid-back young man from Blue Star, transmigrates to the Douluo Continent during the Douluo Continent II: The Peerless Tang Sect era and awakens the Seven Kill Sword Martial Soul.
As a transmigrator, what kind of legend will Lin Chen create in the Douluo Continent?
P.S.: It's a lighthearted story with normal growth, featuring occasional unexpected opportunities, and it has a single female lead.