Azur Lane - Azur Lane for Dummies (Doujinshi) - Ch. 12 - Yat-sen's Arc: Deadly Premonition

[MangaDex]

 

[Mctheprotector]

Mandatory Edit

Spoiler

 

[Stalkerman]

Why she looking depressed all of a sudden?

 

[Gian]

According to Danbooru, that's a reference to the battle (the Naval Battle of Jiangyin) where Ning Hai and Yat Sen (among many others) were destroyed.