Vajra

Vajra is the spear Souji forged with his own hands after learning smithing from Syril. It has three forms: the tournament lance Charge, the two-handed Pierce, and the hidden sword Fusion.

In the finale Syril repairs and improves Vajra as an engagement gift, adding an Absorption function. The weapon carries Souji toward the final dungeon and the battle with the God of Miasma.