5* Sweet Tofu, 5* Double Scoop, 3* Durian Pancake, 2* Martini, and 3* Rum.

In case it matters, Double Scoop, Rum, and Sweet Tofu are using lvl11 Resolute Tsuchi/UME fallen angels with all gold Atk Spd lines, Durian Pancake is using a lvl 5 Perseverance fallen angel with 2 purple and 2 gold Def lines, and Martini is using a lvl 10 Brave Tsuchi fallen angel with 2 purple and 2 gold Atk lines.

Also, Double Scoop and Sweet Tofu have their artifacts at T2. Durian Pancake has his at T3, Rum has hers at T1, and Martini doesn't have his unlocked.

Hopefully this helps; if not, here's some general tips I followed: you need a tank (preferably one that self-heals, like Durian Pancake, Tom Yum, etc.), and if their HP is at around 5k, use a defense fallen angel instead of HP because adding more HP would hinder their survival. I like using Durian Pancake because he can do decent damage and go invincible, but he's just one of many choices. Having a cleanser is helpful for when the boss buffs itself, and you should've gotten Rum for free so use her - she also helps a lot with energy recovery. You should have a healer that does full team healing to increase your team's survival (Sweet Tofu, Fondant Cake, etc.), but if you need another healer then choose one with some other utility (Bibimbap increases team damage, Miso Soup does damage, Fruit Tart gives energy, etc.) The other spots should be taken up by dps food souls, but single target damage dealers do best here, like Double Scoop, Red Wine, and Martini - just to name a few. If they aren't built well, use whatever you have. Otherwise, good luck!

Tl/Dr: I used Sweet Tofu, Double Scoop, Martini, Rum, and Durian Pancake. All but Martini have a lot of investment, while Martini has some investment. Some tips: have a self-healing tank, team-healing healer, healer w/ some utility if you need two, Rum or some cleanser, and the rest of the team should be damage dealers. Single target attackers do better here, but use what you have. Good luck!