ある日突然、ギャルの許嫁ができた

"Hey, why are you always pretending to be asleep? During recess, Miran Hanazuki keeps trying to talk to Shuji Nagasawa. He was puzzled by her behavior, until his parents unexpectedly tells him, "We're sorry for telling you this now, but actually, you have a fiancee......!" What's more, his promised bride is Miran, the girl who is always getting on his nerves! Now they spend time together at lunch and after school. He is confused by the sudden new relationship at first, but even then, Miran always treats him kindly. He's not sure what to expect in the future, but he's sure they'll be able to find a way. A shy guy and a gal, two opposites come together in this lovey-dovey comedy! (Source: Over-Lap, translated)