Seeing Zuo Gufei's Immortal Infant escape, Chu Linfeng was powerless, not because he didn't want to pursue, but the aftermath of using Divine Slash made him unable to give chase; he could only watch helplessly as he fled right under his nose.
The formidable power of Divine Slash directly leveled the surrounding mountains to the ground, and the entrance from the Demon Realm to the Immortal Realm also vanished without a trace; however, this did not mean the entrance to the Demon Realm was opened.
In the Immortal Realm, seals prevent people from the Demon Realm from entering, and similarly, the Demon Realm has seals preventing Immortal Realm people from entering. Chu Linfeng's strike could only completely destroy the Immortal Realm's seal but could not eliminate the Demon Realm's seal.
