Working off of the hint Richard left for him, Seigi heads to the lapis lazuli exhibit at the British Museum. There he finds Richard disguised as a woman. While carefully watching their surroundings, Seigi and Richard flee from the scene.
Richard attempts to send Seigi back to Japan, but Seigi refuses to leave until they talk, and the two disagree.
When the past Richard had kept secret is revealed, how will they choose to act--
that diamonds are hard, but easily 
broken with directional pressure.
أنّ الماس صلب، لكنّه ينكسر 
.بسهولة بالضّغط الاتّجاهيّ
Diamanten haben einen hohen Härtegrad,
Los diamantes son duros,
Los diamantes son duros,
Les diamants sont très durs,
mais cassent aisément
I diamanti sono duri, ma si rompono facilmente 
se viene applicata la giusta forza.
Os diamantes são duros, mas facilmente
quebrados em uma determinada direção.
что алмазы твёрдые, но они легко
ломаются при направленном давлении.