Moreover, his bones haven't fully developed yet. If he advances to the Blood Fusion Realm now, it would cause him significant trouble.
That trouble would be his bones becoming permanently set.
Of course, considering his current height, he's not short by ordinary standards, but if he doesn't want to stop here,
he must suppress his cultivation because parts of his bones, like his skull, can still be tempered further to reach a theoretical limit before breaking through.
He still has this opportunity, so why give it up?
In at most two more years, his height and bones should be completely set. At that time, he can achieve a great breakthrough, even surpassing the Blood Fusion Realm in one swoop.
The stronger the foundation, the higher the potential for future achievements.
Although he's holding back from advancing, his current strength should have greatly increased compared to his time in the Shang Family's courtyard.
