Here for You - IgnitionShipping (Flint x Volkner / オデン / デンオ)

Cover: https://unsplash.com/photos/g0Qdolm3K14
(Fluff, Slice of Life, SFW) After Flint had returned home following the end of his training to place himself on a higher pedestal in the world of Pokémon battle as a member of Sinnoh's Elite Four, his best friend, Sunyshore Gym Leader Volkner - the person who he loved the most - for seemingly unexplained reason, fell into depression, causing him to disregard his passion for Pokémon battle & unhealthily emerge himself in his engineering work. Thankfully however, a young traveler, Ash, had come to Sunyshore to take his badge as a competitor at the Sunyshore Gym, eventually leading to Flint & Ash helping Volkner out of his depressive episode. Though both Flint & Volkner were now happy and had gone back to feeling the passion they had for both each other and their dreams, Flint could not brush off the whole situation & could not resist confronting Volkner on what had really happened. He felt as if not everything that could be said was said, and that unresolved feelings remained between them.
(BASED ON EPISODES CONTAINING FLINT & VOLKNER'S APPEARANCES IN THE DIAMOND & PEARL ANIME - story may be inconsistent with official game universe & Manga universe. Watching the episodes in Japanese is recommended for clarity. Follows headcanons stated in my headcanon dump which can be found here - https://www.wattpad.com/story/231932614-ignitionshipping-headcanon-dump)