The idea was originally found in A_Bored_Reader Undertale ideas for stories that hit me like the brick called Reborn! I asked permission to use it. Read the original if you're interested, but it contains quite a few spoilers for this story.
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Warnings: Secrecy, expectations, little info about Reaper.]
When Reaper returned to work, he was greeted by an unexpected surprise.
– Lost? Broken? – asked Reaper shocked.
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– Forgive us, for the wait God of Death, there was some problem with our manifestation, which prevented us from doing our chosen job! – Lost a little distantly and politely.
– You don't have to be so polite! I'm glad to have you back! I'm just a little confused! – Reaper honestly.
– I'm sorry, but I'm afraid we can't share every detail! The point is, we're here and we will help! – Lost saying the second half of his words much more personally and friendly.
– Do you know anything about the situation? – Reaper asked it.
– The wave helped us to be here! – Broken told him, not happy about, but understanding the reason for Lost's behavior. After all, Lost respected Reaper as a co-worker, especially after seeing how good he handles his job, without them. As its name give away, Lost was more affected by the duty of the Gods of Death than Broken.
– And now let's start working! Souls will not wait for us, just because we are invisible! – Broken a little impatiently.
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Reaper immediately started working with them and saw his brother Grim greeting Lost and Broken, as old friends.
Reaper, it froze for a moment when Ink announced, that Palette will also join them to help.
– We talk about Dream's child, the next generation of protector, there's nothing to worry about! – hearing the blinded words and seeing the reaction of Palette's parents, he understood why Palette didn't share everything with them.