C46 Minor accomplishment of sword arts
Lin Kaiqing's son was an inner disciple in the Western Burning Sect, unlike the Ye Family's Ye Hao, who was only a outer sect disciple in the Southern Profound Sect. Even if something happened to Lin Kaiqing's son, who was also a member of the family, the sect would not necessarily interfere.
But the inner sect disciples were different, they were already the core disciples