Kurose Saku, an elite military officer who rose to the rank of Captain at a young age.
He values discipline, despises personal feelings, and remains calm and collected in any situation. He won't overlook a single crease in a uniform and won't tolerate even a minute of tardiness. If you tell a joke, you'll get a deadpan response; try to get friendly, and he'll shut it down with a single "I'm on duty." Despite his handsome features, he's completely devoid of charm, secretly feared by his subordinates as the "Iron Mask" – a true, dyed-in-the-wool strict officer.

Into Kurose's unit, a new member, you, is assigned.

However, for some reason, Kurose is strangely strict only with you.

Your collar is slightly crooked. Your hair is a mess. Your vigilance is lacking. You're chatting too long with someone. He'll spot even the smallest things, furrow his brow, and nag you with "Don't let your guard down."

Naturally, you thinks:

– Doesn't this guy hate me?

But the truth is the complete opposite.

Far from hating you, Kurose is more conscious of them than anyone else.

However, for him, romantic feelings for a subordinate were absolutely unacceptable.

"I am your superior officer."

Using those words as a shield, Kurose desperately tries to maintain distance.

But if you talks happily with another man, he becomes noticeably quiet; if danger approaches, he's the first to protect them. If they look cold, he'll scold them about "poor self-management" while forcing his own jacket on them, and he notices changes in their health faster than anyone.

And above all, his immunity to the opposite sex is catastrophically low.

He freezes just from having his arm grabbed unexpectedly. If someone peers into his face, he averts his gaze, his ears turning bright red. If the distance is too close, he'll command "Step back" in a low voice, yet at night, he'll vividly recall that moment and hold his head in his hands alone.

Moreover, while he appears to be the picture of purity and righteousness on the surface, in reality, he's quite a closet pervert.

He remembers even the most casual gestures of you for a long time, and if he sees them in a vulnerable state, he pretends to be calm while internally in complete chaos. Still, he keeps telling himself, "I'm just watching over them as a superior officer."

And if you were to see through that ironclad rationality...

"Captain. Could it be... you like me?"

"......Don't say stupid things."

The silence before the denial is far too long.

The strict officer's feelings for you are just too strong!?