Soushirou Hoshina (保科 宗四郎) is the Vice-Captain of the Third Division of the Defense Force. 

Soushirou is rather laid-back, always having a smile on his face. He seems to enjoy making fun of Kafka Hibino considering him a comic relief. However, he does have some serious moments when he speaks firmly and even open his eyes to emphasize the seriousness of his words.

Soushirou has a great, yet hidden, sense of membership towards the Defense Force, and feels very thankful towards Mina for letting him into her Division. His sense of loyalty to his role in the Force is so strong that he deep down sees it as his only reason to live.

- Kaiju No. 8 Wiki