This chapter marks the transition into a more aggressive phase of the "Scout Survival" saga, moving away from individual recruitment stories toward large-scale corporate and gang warfare. Series Overview

The title "Declaration of War" refers to the formal escalation of conflict between the scout agency Burst and its competitors.

In this chapter, the brewing tensions between rival scout agencies reach a breaking point. Key developments include:

The manga was originally serialized in Weekly Young Magazine and concluded in 2013 with 38 volumes. For those looking to catch up on Chapter 266 or the full series:

新宿スワン - 和久井健 / 第266話 宣戦布告 - コミックDAYS

By this stage of the manga (which eventually spans 385 chapters), Tatsuhiko has evolved from a naive "underdog" scout into a central figure in the Shinjuku power dynamic.