Gal to Dungeon to Shuukai Okure no Tansaku Eiyuutan ~Moto Legend Ima wa Wakeari tei Rank Tansakushana Ore ga, S-Kyuu Gal ni Natsukare Makutte Ikusei wo Makase Sareta~

Kaoru Kunou was once a legendary explorer feared and respected as the “Dungeon Maniac.” Now, for reasons unknown, he has fallen to the ranks of a bottom-tier adventurer. Disillusioned by reality yet unable to abandon his passion, he continues diving into dungeons, chasing the fading dreams of his youth. Everything changes when he accidentally saves Shion, a wildly popular S-class gal streamer, from a life-threatening crisis inside a dungeon. Captivated by Kaoru’s strength and mysterious aura, Shion falls for him at first sight. At first, Kaoru is overwhelmed by Shion’s radiant personality and bold affection. However, her sincerity begins to break through his emotional walls, slowly healing the scars of his past. What starts as an unlikely encounter turns into a temporary mentor-and-student partnership, with Kaoru guiding Shion through the dangers of dungeon exploration. Together, they decide to challenge the deepest layers of a dungeon connected to both of their pasts. But as secrets resurface and powerful threats emerge, their bond — and their hearts — will be tested. Blending dungeon fantasy, age-gap romance, streaming culture, and second-chance redemption, this story delivers action, emotion, and heartfelt character growth.