|Daily Routine||Read game record|
|Disliked Food||Cold soba noodles|
|Favourite Subject||Japanese History|
|Weak Subject||Physical education|
|Image Color||Light Orange|
Mei Irizaki is the Chief Torpedo Officer aboard the Harekaze and one of the protagonists of Hai-Furi.
Mei has brown eyes and the hair to match, tied up in a broad ponytail by a red ribbon. She also has a green hair clip, holding a lock of hair on her left. She can be seen wearing the school uniform but not without an orange cat-themed hoodie over it even at night during sleep, there were only a few rare occasions where she is seen wearing her uniform only.
Mei finds the thrill of battle to her liking. Nothing can be music to her ears more than being able to fire a torpedo, much more an entire salvo. This also applies to depth charges. As expected, however, she doesn't like the fact of being fired at, she also show some signs of fear of being fired or an unexpected explosion of shells
Her choice of quotes, notably from "The Three Major Daimyo," shows her occasional impatience. She likes the first line the most: "If the cuckoo doesn't sing, kill it."
Despite this, Mei is shown to be just as friendly as her classmates aboard the Harekaze, in fact she is one of the more cheerful one on the bridge. Over the course of the adventure, she became best friends with Chief Artillery Officer Shima Tateishi ("Tama"). Mei even accompanied Tama when she was confined due to her running amok and and attacking the repair ships resulting from the RaTt virus. However there are times where she can become impatient and doesn't want to wait for an answer.
- "The Three Major Daimyo" is a commonly-taught poem that describes the triumvirate of feudal Japan. The first line that Mei likes refers to Oda Nobunaga, known for his ruthlessness in the battlefield.
- Her last name, Irizaki, comes from Cape Irizaki, the westernmost tip of Yonaguni Island in Okinawa.