When Chu Huaixu left the Daoist Ancestor Inheritance Secret Realm, the progress bar for his Sword Heart was at 56%.
During these days, he sparred with Han Shuangjiang in various ways, acting as her sparring partner.
He just upgraded [Six Out of Seven] to Great Perfection.
These actions all contributed to raising the Sword Heart progress bar.
The former actually had minimal effect, because when sparring, he didn't want to hit the Big Ice Cube too hard. At most, he would playfully smack her plump behind and feel the jiggle of the flesh — it's just some harmless teasing.
He couldn't really injure her, could he?
She wasn't very strong, didn't practice Body Refining, wasn't resilient to injury, and could only recover by taking medicine, unlike Xiaoxu and him who could regain strength more quickly.
As a result, Chu Huaixu would hold back too much during sparring, making it relatively meaningless.
