Complex sentence: However, due to a misunderstanding when Akane first saw him as a naked stranger awaiting her in the bathroom, they initially found this unacceptable and loudly objected, but both Soun and Genma remain confident that they will grow to love each other with time.
Split into simpler sentences: However, due to a misunderstanding when Akane first saw him as a naked stranger awaiting her in the bathroom, they initially found this unacceptable and loudly objected. Despite this initial outburst, Soun and Genma remain confident that they will grow to love each other with time.