Although Mika appears angry as he claims Yuu for himself, he raises no objection to Yuu being adopted; Yuu, for his part, does: "You want to adopt me? Fine—but Mika comes with me." This condition applies in reverse as well. By acting this way, Yuu reaffirms his bond with Mika.
acabo de recodar esta escena del cap 121 y me pone triste saber que todo acabará pronto
que Yuu quería un buen recuerdo con Mika, hacer algo que harías si el mundo no se hubiera ido a la mierda: escalar una montaña e ir a ver un paisaje bonito con alguien a quien quieres