Echizen's Childhood Friend Plan [Crossover]

This story will be going VIP on February 4, 2018, with 9,000 to 10,000 words released that day. I hope you lovely readers will support me. Muah! Promise me you'll read the author's note at the end of Chapter One for content warnings. Thanks to the amazing Zhui Zhui for the cover, muah! The twelve-year-old little Pillar, just back from America to Japan, suddenly found a memory that didn't belong to him in his mind. In that memory, his seventeen-year-old self had a white-haired little girl with a crimson glow by his side. #I just want to play tennis in peace. I don't want to be a King# #I can't believe my seventeen-year-old self is a lolicon. That's terrifying# #Wait, this little girl seems kind of cute# #Deep in thought# [Reading Guide] 1. The whole story is a warm, everyday slice of life. Ignore the blurb and it's just a childhood-friends story. No romance before they grow up. Little Pillar has a custom snarky side, so read with caution if that's not your thing. 2. Remember that the princes are all just young boys. They're passionate and full of youthful spirit, but they're also still awkward and inexperienced. [Smiling and underlining this] 3. When Little Pillar isn't playing tennis, he's figuring out how to get along properly with his childhood friend. Recommendations: [Western Crossover] -> "[Anime Crossover] No Turning Into Spirits After the Founding of the Nation!" -> One-line summary: After the founding of the nation, no turning into spirits! [Anime Crossover] -> "Qi, I'm Not Your Reward! [The Disastrous Life of Saiki K. Crossover]" -> One-line summary: I helped Qi get rid of his admirers, but got caught up in it myself. [Western Crossover] -> "[Western Crossover] You Can Win Over the Gods Even Without a Golden Finger" -> One-line summary: Hotch, my dream man, is mine! [Anime Crossover] -> "My Vampire Boyfriend [Crossover]" -> One-line summary: The lovey-dovey everyday life of Natsume Masako and Kuran Kaname. -> "[Crossover] Today's Saniwa Is as Willful as Ever" -> Blurb: Amaterasu? Gobbled up in one bite. Celestials? Gobbled up in one bite. Kaguya Otsutsuki? Gobbled up in one bite. There's nothing in this world that this Saniwa can't gobble up in one bite. If there is, it'll take two. Theme: