![(6) (9) 2girls :d adrian_ferrer ahoge blue_eyes blue_hair bow cirno crescent crossover dress fang fingers frills hair_bow hair_ornament hair_ribbon ice ice_wings kantai_collection large_bow look-alike minazuki_(kantai_collection) multiple_girls necktie number open_mouth ribbon school_uniform serafuku shirt short_hair shorts smile smug touhou v-shaped_eyebrows wings rating:s score:8 post #2452488](/cdn_image/preview/21/c4/21c44d0cfb5f96bebb9c7c3e365c849c.jpg)
A number associated with Reiuji Utsuho due to a thing where both her and Cirno were saying they were the strongest... and since Utsuho has the power to back her claims up, the ⑨ was flipped and resulted in this.
Also, not all Utsuho posts should be tagged (6), only posts that incorporate the 6-in-a-circle symbol.
This tag implicates number (learn more).