Didn't even break a sweat, but that's Dragonflowers and new merge mechanics in play for ya.
Adult Tiki [+9 Merges] [+5 Flowers] (+Def) (S-Rank Summoner Support)
WPN: Breath of Fog (+Res)
AST: Pivot
SPL: Glimmer
A: Distant Counter
B: Swordbreaker 3
C: Atk Tactic 3
S: Quick Riposte 3
Julia [+4 Flowers] (Neutral)
WPN: Naga (+Eff)
AST: Pivot
SPL: Iceberg
A: Death Blow 3
B: Wings of Mercy 3
C: Atk Tactic 3
S: Def Tactic 3
Tiki and Julia have S-Rank Ally Support
Brave Hector [+1 Merges] [+1 Flowers] (+Atk)
WPN: Maltet
AST: Swap
SPL: Aether
A: Ostian Counter
B: Special Fighter 3
C: Res Tactic 3
S: Armored Boots
Veronica [+3 Flowers] (Neutral)
WPN: Hliðskjálf
AST: Restore+
SPL: Windfire Balm+
A: Grani's Shield
B: Wrathful Staff 3
C: Atk Tactic 3
S: Res Tactic 3
Hector and Veronica have S-Rank Ally Support
-----------------STRATEGERY-----------------
Easy pickings. Tiki and Hector clean up the whole left side while Julia and Veronica do the right side. Wings of Mercy on Julia is a leftover from a previous setup in which the Wo Gún infantry survived and thus spawned the Safeguard and Reprisal Lance cavs on the northeast, but I realized I could just pivot TIki over Hector to finish the map.