Only After Death Did I Learn I Was the White Moonlight of the Demon Sect's Senior Brother

A seemingly composed junior sister with a busy inner monologue X a cold, sharp-tongued, scheming senior brother

(The romance develops gradually. This is not an old-school melodramatic novel.)

Ning Youyue, the Immortal Venerable of the Mystic Moon, had two great regrets in her life:

The first was sneaking a peek at her senior brother Shi Li while he bathed, then accidentally falling face-first into the pool.

The second was taking in an ungrateful fox as her disciple.

The first kept her from daring to see Shi Li for three hundred years.

The second ripped out her dragon bone to help his beloved younger sister cultivate, killing her outright.

Fortunately, the heavens had eyes. For some inexplicable reason, Ning Youyue returned to life in another body.

In this life, she would make the scumbag and the wicked woman pay...

Wait, wait, wait!

Senior Brother, your junior sister is about to be strangled to death!

Shi Li, whose talent was unmatched beneath the heavens, was hailed as the foremost sword cultivator of the Three Realms, though he unfortunately practiced demonic cultivation.

This fine sword cultivator became a notorious fiend, infamous for his endless killing.

He had only two great regrets in his life:

First, when his junior sister fell into the hot spring, he failed to catch her, and she ran off.

Second, he was busy in seclusion weathering his tribulation and failed to stop his junior sister from taking that damned fox as her disciple.