The following contains spoilers for Spy x Family Chapter 62.3 by Tatsuya Endo. The manga is currently available in English through Viz Media.
The last few chapters of Spy x Family have focused on Twilight's backstory, beginning from his childhood, playing soldier with his friends to the moment he lost everything, consequently becoming a real soldier in an attempt to do something about the grief he carries. Twilight is unrecognizable from the Loid Forger fans are familiar with today. Twilight's backstory comes to a close in Chapter 62.3, and while the earlier chapters were painful, this newest chapter feels cruel.
Chapter 62.3 of Spy x Family is a firm anti-war message. Ostania and Westalis have both allowed, and perhaps encouraged, innocent people to fight and die for them.
Before becoming friends, the first meeting Twilight had with Franky was under less than ideal conditions. Twilight's anger had blinded him to seeing the enemy as being nothing more than monsters, yet there was something human about Franky's bumbling disposition and how he begged Twilight to spare his life. However, his amusement didn't last long.
Franky points out that nobody from the East or the West knew why they were fighting, or why they hated each other. Each side had been told by their governments that the other was responsible for throwing the first bomb, for starting the war, and fueling hatred on both sides. People were killing each other without knowing the reason, believing the lies that their governments had been telling them.
This was not what Twilight expected to hear. For years, he had seen the Ostanians as monsters, and now, an Ostanian defector was trying to tell him that they were both on the same side. For the first time, Twilight questioned what he knew as the truth.
Twilight became a soldier to avenge his friends' death, and when he reunites with them at the army camp, he burst into tears, realizing they had escaped the bombing many years before. However, this happiness is cut short when his friends are killed in battle, dying for an ill-conceived mission. Losing his friends for a second time, Loid realizes in horror that Franky was telling him the truth.
Never once had Twilight questioned the things he was told by the government. Loid wonders he had known the real reason why the war had started, if he could have prevented the nightmarish failure of their mission. In anguish, he realizes that the real enemy isn't the East, rather, ignorance is the true monster.
Twilight lost everything because he didn't know the truth. Knowledge can't bring his friends back from the dead, and it's something he has to live with for the rest of his life. The guilt that Twilight carries is a heavy burden, because he'll never know if he could have changed the outcome. Twilight begins concealing himself by redacting his real name, crafting fake identities, and molding himself to fit whoever he encounters to protect himself.
At the end of the chapter, Twilight tells a WISE recruiter that he doesn't care about winning the war or defending his country. When asked why he agreed to join WISE, a group of children race past Twilight, followed by a close-up of his eyes -- devoid of feeling. Twilight tells the man that there is no reason. Twilight may have failed to save his friends, but that doesn't mean he can't try to save future generations from going through the same agony that he did.