Teikoku No Shinpei Vol. 4

Owing to the Allied night attacks, there’s currently a strict curfew in operation. Sakuya loves to see the moon at night, but what she witnesses outside is something altogether more worrying than enemy bombardment – giant monsters imitating gods from different countries are fighting their own battles…
In Vol. 4, Sakuya has undertaken responsibility for taking back the ocean only for Poseidon to put in an appearance!
Notice: This manga is written in Japanese.