Known as “Akamon”, this was the main gate of the Fifth High School. Constructed at the same time as the main building of the Fifth High School, this gate features posts and wing walls made from a combination of brick and natural stone to convey an air of dignity to passersby on the former Bungo Highway (now Prefectural Road No. 337).
The gate has been doorless since its initial construction, and there were crop fields beyond it on the campus grounds, as referenced in a verse by Natsume Soseki: “Beyond the stern gate/Buckwheat flowers bloom.”