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日本へようこそエルフさん。
Kazuhiro Kitase’s only hobby? Sleeping, of course. Since childhood, his dreams have been a portal to exhilarating adventures with an elf girl. During one of their explorations through ancient ruins, they both get scorched by a dragon, and Kazuhiro wakes up like usual. Except this time, he finds a familiar figure in bed beside him—the elf girl from his dreams.
Average salaryman Kitase Kazuhiro's hobby is sleeping. In his dreams, he visits a fantasy world where he adventures with an elf he's befriended named Marie. But one day when he wakes, the girl he's only seen in his dreams is there beside him!
Kazuhiro and Marie enjoy a day in Japan. Later, they theorize that they'll be able to return to Marie's world if they fall asleep together. That leaves just one problem—they'll wake in the same place they left, with an angry Arkdragon lying in wait!
Kazuhiro and Marie are enjoying life in both the fantasy world and Japan. They go to look for magic stones in the blazing heat of the Ujah Peak ruins.
Life in Japan continues to surprise and delight Marie. But when night comes, the ruins await her and Kazuhiro.
Kazuhiho and Marie have a plan to beat the bandits and stage a rescue, but the bandit boss has other ideas!
Kazuhiro and Marie focus on their plans to explore the labyrinth, then Kaoruko invites them out to dinner!
Exploration permit in hand, Kazuhiho and Marie visit Mewi and learn that something happened to the Arkdragon!
The hot springs trip begins! The ladies enjoy delicious food and a relaxing soak, and Marie gets some advice.
Kazuhiho and the others return to the other world where the high-level sorcerer Sven lies in wait for them.
Kazuhiro and Marie enjoy a day off in Japan. Then, in the other world, they enter the labyrinth with Wridra.
They're off to Aomori! While Marie enjoys the new sights and new foods, Kazuhiro recalls childhood memories.
Kazuhiro and Marie explore Aomori. Amid swirling sakura petals, their eyes meet and something shifts forever.
