Matsushita’s coach, Takeshi Nakamura, approached her at the aid station, and after a quick assessment of her vitals (heart‑rate 185 bpm, core temperature 38.9 °C/102 °F, and reported nausea), recommended that she withdraw. The decision was made collaboratively with Matsushita, who later explained:
The "first exhaustion" part of your search is likely a specific marketing phrase used for one of these compilation releases. Many studios use language like "初の疲労" (First Exhaustion) or similar to describe a compilation featuring scenes where the actress is pushed to her limits.
Saeko Matsushita’s First Exhaustion — 4-Hour Special saeko matsushitas first exhaustion 4 hours spe
: In the context of mature Japanese adult media, "exhaustion" highlights the psychological and physical endurance required during marathon film sessions. It captures the authentic breaking of a performer's initial polite reservations.
The Amazon Japan listing for the 4-Hour Special BEST highlights a collection compiled from six of her most foundational and historically significant early works. Spanning , the special systematically documents her industry milestones, labeled sequentially as a series of intense "firsts": Saeko Matsushita’s First Exhaustion — 4-Hour Special :
Saeko Matsushita's First Exhaustion 4 Hours Genre: Endurance / Anthology / Intensity
In the context of these specialty videos, "exhaustion" ( shoumou ) refers to a thematic framing where the performer participates in consecutive, highly intense, or physically demanding scenes without the typical narrative breaks found in standard releases. Spanning , the special systematically documents her industry
According to Matsushita, the recording session was for a new anime series, and she was tasked with voicing a complex character with multiple emotions. The session lasted for 4 hours, during which she had to maintain a high level of energy and focus.