Aiger and Nika should've been pushed more in the series. Episodes in Turbo teased Nika could start having feelings for Aiga: : r/Beyblade
Pokemon Sun and Moon Ultra Adventures x Beyblade Burst Franchise Crossover[FIN.] - If Toko & Nika met Their Older Selves from Beyblade Burst Turbo - Wattpad
Beyblade Burst Infinity War - Capitulo 6 Peter conociendo a los Aoi - Wattpad
Pokemon Sun and Moon Ultra Adventures x Beyblade Burst Franchise Crossover[FIN.] - If Toko & Nika met Their Older Selves from Beyblade Burst Turbo - Wattpad