Makoto is integral to Ruri Hadou's personal staff within the Hadou Financial Group, forming a technical support trio with Sonia and Chiaki. They manage repairs, system diagnostics, and operational coordination for the Deus Machina Demonbane from an underground command center, including battlefield logistics. Makoto also assists Ruri in overseeing Arkham City's defense against the Black Lodge. During critical combat, she helps activate systems like the Naacal Code, required to authorize Demonbane's Lemuria Impact attack. Outside battle, she accompanies Ruri and investigators on missions, such as investigating supernatural disturbances tied to Deep Ones and Dagon at the Hadou Group's Innsmouth beach resort, participating in both routine activities and crisis response.