The Yakuza games alternate wildly between being extremely serious dramas about underworld crime, and extremely light hearted and wacky side quests. Some people might find the change in tone breaks immersion, but I find the two extremes increase the impact of each other. When a game is serious all the time I get numb to it, there needs to be a variety of lighthearted content for me to really feel the impact of when things get heavy.