Snowball Combat Manual

Written by Ye Yunshang. The handwriting is very neat and elegant, with a touch of childishness in the strokes, just like her.
The book records her snowball-fight techniques, solemnly divided into two chapters, "Frontal Assault" and "Surprise Attack". Most of the moves in it are things she made up.
It covers hiding stones or caterpillars inside snowballs, stuffing snowballs down people's trousers, and every other ruthless trick imaginable.
Effect
| Level | Effect | Martial Points |
| LV1 | Hidden Weapon 1, Morality −1 | 5 |
| LV2 | Hidden Weapon 2, Morality −2 | 5 |
| LV3 | Hidden Weapon 3, Morality −3 | 5 |
| LV4 | Hidden Weapon 4, Morality −4 | 5 |
| LV5 | Hidden Weapon 5, Tactics LV1, Mind Battle LV1, Morality - | 5 (25) |
How to Obtain
- Before Late Sep while studying at Qingcheng, trigger the "Qingcheng Ostracism" event after Training three times; given as a gift if Ye Yunshang ≥35.