Mika commands Continuation High School’s sensha-dō team from her Finnish BT-42 light tank, transitioning from the school’s former top ace to its strategic leader. Her long brown-grey hair and light brown eyes complement her ever-present Finnish saunalakki hat, a near-permanent fixture. She carries a kantele, often plucking the lively Säkkijärven Polkka during quiet moments. Calm and enigmatic, Mika communicates through nature-themed proverbs, leaving their meanings to the wind rather than offering explanations. Her carefree independence masks kleptomaniac habits—she “borrows” freely, from Pravda’s KV-1 tank to All-Stars University’s rations and deserted island supplies. She entrusts chores like cooking to teammates Aki and Mikko, prioritizing relaxation over routine labor. Debuting in OVA 6, Mika congratulates Oarai’s victory before later observing their exhibition match against Pravda and St. Gloriana, declining to intervene. When confronting the All-Stars University Team, she joins Oarai’s coalition, using her BT-42 to outmaneuver three M26 Pershings guarding a Karl-Gerät 040. Her hit-and-run tactics help dismantle the target, though she exits before the final clash. In *Das Finale*, Mika initially refuses to join the Winter Track Cup, declaring winter a season for rest. She later rallies Continuation to triumph over Yogurt Academy and Saunders, deploying unorthodox strategies like kantele melodies as makeshift sonar for battlefield navigation. After losing to Oarai, she accepts defeat as the “wind of victory” favoring her rivals and extends an invitation to Continuation’s carrier. Her November 30 birthday aligns with the Winter War’s 1939 start, while fan speculation posits a familial link to Alice Shimada due to shared combat styles and reserved demeanors. Mika’s “borrowing” habits mirror Finland’s historical use of repurposed equipment, and her saunalakki and kantele cement her Finnish-inspired identity.