3-gatsu no Lion

21st century adapted to anime adapted to live action adult-teenager relationship age gap ambiguous feelings award-nominated work award-winning work awkward male lead board games bullying cats character growth child/ren childcare dead family members dead parents depression determined protagonist engagement estranged family family fellow disciples first love glasses-wearing male lead grooming hard-working protagonist high school independent male lead irresponsible parents japan kyoto loneliness loner protagonist male demographic with female author melancholy atmosphere modern city modern era money problems mono no aware multiple couples older male younger female orphans pedophile pedophilia pop culture references pragmatic characters pragmatic protagonist prodigy professional sports protective friends protective male lead quirky characters realistic sport rich characters search for oneself serious/studious characters shogi sisters slow romance slow-burn smart male lead statutory rape talented protagonist tokyo tournaments unexpected feelings unrequited love young male lead iyashikei strategy game