If you're looking for anime similar to Wave, Listen to Me!, you might like these titles.
Cockroaches Gokicha and Chaba move from Kanto to Hokkaido, giving their newly-found life experiences from the perspective of this indestructible insect. Though others see them only as squashable nuisances, these vermin are personified using young female faces and voices, as they open their misunderstood world to us in their own uniquely cute way.
Fuguno Masuo is a person who doesn't have much luck with the ladies -- mildly put. All through high school and college, he has failed to have a girlfriend, and when he is foretold by a fortune teller that he'll never, ever get one, he is utterly crushed. But when he meets the beautiful Nagisa, his heart is set in motion for the first time. However, he'll have to compete with the charming and handsome Kaizuka, and the rich real-estate broker Kujira…
In the early twentieth century, Russo-Japanese War veteran Saichi “Immortal” Sugimoto scratches out a meager existence during the postwar gold rush in the wilderness of Hokkaido. When he stumbles across a map to a fortune in hidden Ainu gold, he sets off on a treacherous quest to find it. But Sugimoto is not the only interested party, and everyone who knows about the gold will kill to possess it! Faced with the harsh conditions of the northern wilderness, ruthless criminals and rogue Japanese soldiers, Sugimoto will need all his skills and luck—and the help of an Ainu girl named Asirpa—to survive.
The high-stakes search for gold continues in the harsh wilderness of Hokkaido! More and more people seek the treasure map, and the race to find its living pieces is brutal as all get-out. War veteran Sugimoto and his guide to the wilds, Asirpa, are hot on the trail, and as long as they stick together through thick and thin—chitatap and miso—they’ve got a shot at finding that gold.
The anime's original story features Mutta and Hibito during one summer when they were children. During the summer when Mutta and Hibito made their promise to go to space, they met a young girl who also had a wish.
Dai lived a normal high school life in Sendai: a city of hot summer days and rainy nights. Between basketball, part time jobs, and an uncertain future, something was missing. And that thing was music. With his days in senior year running out, Dai swears a heartfelt vow: “I’m gonna be the best jazz player in the world.” But what do you need to be the best? Talent? Effort? A lucky break? Or maybe just a deep, pure love for music, and too much stubbornness to know when to quit.